• Linus Torvalds's avatar
    Merge branch 'x86-fpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 421ec901
    Linus Torvalds authored
    Pull x86 fpu changes from Ingo Molnar:
     "Various x86 FPU handling cleanups, refactorings and fixes (Borislav
      Petkov, Oleg Nesterov, Rik van Riel)"
    
    * 'x86-fpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (21 commits)
      x86/fpu: Kill eager_fpu_init_bp()
      x86/fpu: Don't allocate fpu->state for swapper/0
      x86/fpu: Rename drop_init_fpu() to fpu_reset_state()
      x86/fpu: Fold __drop_fpu() into its sole user
      x86/fpu: Don't abuse drop_init_fpu() in flush_thread()
      x86/fpu: Use restore_init_xstate() instead of math_state_restore() on kthread exec
      x86/fpu: Introduce restore_init_xstate()
      x86/fpu: Document user_fpu_begin()
      x86/fpu: Factor out memset(xstate, 0) in fpu_finit() paths
      x86/fpu: Change xstateregs_get()/set() to use ->xsave.i387 rather than ->fxsave
      x86/fpu: Don't abuse FPU in kernel threads if use_eager_fpu()
      x86/fpu: Always allow FPU in interrupt if use_eager_fpu()
      x86/fpu: __kernel_fpu_begin() should clear fpu_owner_task even if use_eager_fpu()
      x86/fpu: Also check fpu_lazy_restore() when use_eager_fpu()
      x86/fpu: Use task_disable_lazy_fpu_restore() helper
      x86/fpu: Use an explicit if/else in switch_fpu_prepare()
      x86/fpu: Introduce task_disable_lazy_fpu_restore() helper
      x86/fpu: Move lazy restore functions up a few lines
      x86/fpu: Change math_error() to use unlazy_fpu(), kill (now) unused save_init_fpu()
      x86/fpu: Don't do __thread_fpu_end() if use_eager_fpu()
      ...
    421ec901
signal.c 19.9 KB